Article ; Online: HITTING the Diagnosis: Testing for Heparin-Induced Thrombocytopenia in Cancer Patients.
American journal of clinical pathology
2018 Volume 150, Issue 2, Page(s) 116–120
Abstract: Objectives: To evaluate the use of a pretest probability score (4Ts score) in cancer patients to guide ordering of laboratory screening tests for heparin-induced thrombocytopenia (HIT).: Methods: A retrospective chart review was conducted for ... ...
Abstract | Objectives: To evaluate the use of a pretest probability score (4Ts score) in cancer patients to guide ordering of laboratory screening tests for heparin-induced thrombocytopenia (HIT). Methods: A retrospective chart review was conducted for patients (n = 140) in whom laboratory testing for HIT was requested. 4Ts scores were calculated and correlated with heparin-endogenous platelet factor 4 antibody enzyme-linked immunosorbent assay (ELISA) test results. Results: All patients with a high pretest probability of HIT (4Ts score = 6-7) had positive ELISA results, compared to 26.1% of patients with intermediate (4Ts score = 4-5) and 4.3% of patients with low (4Ts score ≤3) pretest probability. No patients with 4Ts scores of 2 or less had positive ELISA results. Conclusions: HIT can be ruled out in cancer patients (negative predictive value and sensitivity = 100%) with low pretest probability, defined by 4Ts scores of 2 or less, significantly reducing the need for laboratory testing in this patient population. |
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MeSH term(s) | Adult ; Aged ; Anticoagulants/adverse effects ; Enzyme-Linked Immunosorbent Assay ; Female ; Heparin/adverse effects ; Humans ; Male ; Middle Aged ; Neoplasms ; Retrospective Studies ; Risk Factors ; Thrombocytopenia/chemically induced ; Thrombocytopenia/diagnosis |
Chemical Substances | Anticoagulants ; Heparin (9005-49-6) |
Language | English |
Publishing date | 2018-06-15 |
Publishing country | England |
Document type | Journal Article |
ZDB-ID | 2944-0 |
ISSN | 1943-7722 ; 0002-9173 |
ISSN (online) | 1943-7722 |
ISSN | 0002-9173 |
DOI | 10.1093/ajcp/aqy040 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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